document.write( "Question 746890: A(1,2), B(-1,1), C(1,0), D(-1,0) and P is (t,0). (cordinates of p are located between 0 and 1 on axis X), we are to find the point P at which angle APB is maximized\r
\n" ); document.write( "\n" ); document.write( "tan(APC) is = 2/1-t, tan(BPD) = 1/1+t and hence tan(APC) = t+x/t^2+y
\n" ); document.write( "therefore, the cordinates of point P are (t,0)
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Algebra.Com's Answer #454603 by solver91311(24713)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "Let refer to angle APC. Let refer to angle APB. Our task is to maximize \r
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\n" ); document.write( "\n" ); document.write( " is indeed , but you have a sign error or . Should be .\r
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\n" ); document.write( "\n" ); document.write( "Using those values, and the fact that , you should be able to derive the fact that:\r
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\n" ); document.write( "\n" ); document.write( "Use the quotient rule to find the derivative,\r
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\n" ); document.write( "\n" ); document.write( "Set the numerator of the derivative equal to zero and solve the quadratic for the positive value for that yields a maximum tangent, and therefore a maximum angle.\r
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\n" ); document.write( "\n" ); document.write( "John
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\n" ); document.write( "Egw to Beta kai to Sigma
\n" ); document.write( "My calculator said it, I believe it, that settles it
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\"The

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